134621631508 has 24 divisors (see below), whose sum is σ = 289954284032. Its totient is φ = 53256909024.

The previous prime is 134621631481. The next prime is 134621631509. The reversal of 134621631508 is 805136126431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134621631509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184919460 + ... + 184920187.

Almost surely, 2^134621631508 is an apocalyptic number.

It is an amenable number.

134621631508 is an abundant number, since it is smaller than the sum of its proper divisors (155332652524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134621631508 is a wasteful number, since it uses less digits than its factorization.

134621631508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369839671 (or 369839669 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 134621631508 its reverse (805136126431), we get a palindrome (939757757939).

The spelling of 134621631508 in words is "one hundred thirty-four billion, six hundred twenty-one million, six hundred thirty-one thousand, five hundred eight".